X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.253.156.46] (HELO canformail1.canfor.ca) by logan.com (CommuniGate Pro SMTP 5.0.3) with ESMTP id 860813 for flyrotary@lancaironline.net; Fri, 02 Dec 2005 15:16:24 -0500 Received-SPF: none receiver=logan.com; client-ip=64.253.156.46; envelope-from=Steve.Bartrim@canfor.com X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C5F77D.24577378" Subject: Ed's High Energy Brakes Date: Fri, 2 Dec 2005 12:15:30 -0800 Message-ID: <091A2D42FAF91A41B84750D269FC97E72B31CF@canformail1.canfor.ca> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Ed's High Energy Brakes Thread-Index: AcX3Vi2d85DUow1kQCim8Nf+HRuH0gAIpfGA From: "Bartrim, Todd" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C5F77D.24577378 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Ed; I'm curious about your brake upgrade. Is this an upgrade over Van's currently supplied brake kits, or is it an upgrade from an older supplied kit to the newer kits? Reason I ask is that with my previous brake/tire combination, I always had enough brake power to lock up the tires on pavement, so this was the limiting factor in stopping distance. But with the new Condor tires I don't seem to be able to brake hard enough to lock them up and stopping distance seems slightly improved (no actual measurements were taken). So I'm wondering if I could benefit from a brake upgrade. I also wonder if the Condors are just gripping better because the surface is new or if it had anything to do with the temps. While it was -15C, the runway was reported to be 80% bare & dry, so surface friction wasn't a problem. Last spring when I was at the Murphy Aircraft factory, I spied in their machine shop a stack of brake parts. I asked about them and it turns out that they make all their own based on the Cleveland brake design, improved in several ways. They were machined aluminium callipers rather than cast steel, so really looked good. They claimed that they would directly replace the Cleveland brakes that Van's sells. I'd like to improve on my stopping distance, to get it down to a couple hundred feet, however I think that it likely won't matter because the only way I can is on pavement where I always have plenty of space, but on short rough strips (like where I could build one at home) I think surface friction will be the limiting factor. Still curious though. =20 Todd (trying to stop on a dime) I now have my two new high energy brake rotors, new pads, new brake lines and the new fluid (also two new wheel pants {:>)). I really like the feel and holding action of the new brake set up - it does seem to make it stop a bit quicker (same size brake pads) and there is no fade (like I would sometimes have at the end of a hard stop) even after repeated high speed stops. Also the brakes just feel much firmer and I like the results. I get no creep at WOT run up like could happen before. =20 ------_=_NextPart_001_01C5F77D.24577378 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Hi Ed;
    I'm curious about your brake = upgrade. Is this an=20 upgrade over Van's currently supplied brake kits, or is it an upgrade = from an=20 older supplied kit to the newer kits? Reason I ask is that with my = previous=20 brake/tire combination, I always had enough brake power to lock up the = tires on=20 pavement, so this was the limiting factor in stopping distance. But with = the new=20 Condor tires I don't seem to be able to brake hard enough to lock them = up and=20 stopping distance seems slightly improved (no actual measurements = were=20 taken). So I'm wondering if I could benefit from a brake=20 upgrade.
    I also wonder if the Condors are = just gripping=20 better because the surface is new or if it had anything to do with the = temps.=20 While it was -15C, the runway was reported to be 80% bare & dry, so = surface=20 friction wasn't a problem.
    Last spring when I was at the = Murphy Aircraft=20 factory, I spied in their machine shop a stack of brake parts. I asked = about=20 them and it turns out that they make all their own based on the = Cleveland brake=20 design, improved in several ways. They were machined aluminium callipers = rather=20 than cast steel, so really looked good. They claimed that they would = directly=20 replace the Cleveland brakes that Van's sells.
    I'd like to improve on my stopping = distance, to=20 get it down to a couple hundred feet, however I think that it likely = won't=20 matter because the only way I can is on pavement where I always have = plenty of=20 space, but on short rough strips (like where I could build one at home) = I think=20 surface friction will be the limiting factor. Still curious=20 though.
 
Todd     (trying to stop on = a=20 dime)

I now have my two new high energy brake = rotors, new=20 pads, new brake lines and the new fluid (also two new wheel pants=20 {:>)).  I really like the feel and holding action of the new = brake set=20 up - it does seem to make it stop a bit quicker (same size brake pads) = and=20 there is no fade (like I would sometimes have at the end of a hard = stop) even=20 after repeated high speed stops.  Also the brakes just feel much = firmer=20 and I like the results.  I get no creep at WOT run up like could = happen=20 before.
 
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